* {
    margin: 0;
    padding: 0;
}

.slideshow {
    position: absolute;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.slideshow-image {
    position: absolute;
    width: 100%;
    height: 100%;
    background: no-repeat 50% 50%;
    background-size: cover;
    -webkit-animation-name: kenburns;
    animation-name: kenburns;
    -webkit-animation-timing-function: linear;
    animation-timing-function: linear;
    -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
    -webkit-animation-duration: 16s;
    animation-duration: 16s;
    opacity: 1;
    -webkit-transform: scale(1.2);
    transform: scale(1.2);
}

.slideshow-image:nth-child(1) {
    -webkit-animation-name: kenburns-1;
    animation-name: kenburns-1;
    z-index: 3;
}

.slideshow-image:nth-child(2) {
    -webkit-animation-name: kenburns-2;
    animation-name: kenburns-2;
    z-index: 2;
}

.slideshow-image:nth-child(3) {
    -webkit-animation-name: kenburns-3;
    animation-name: kenburns-3;
    z-index: 1;
}

.slideshow-image:nth-child(4) {
    -webkit-animation-name: kenburns-4;
    animation-name: kenburns-4;
    z-index: 0;
}

@-webkit-keyframes kenburns-1 {
    0% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    1.5625% {
        opacity: 1;
    }

    23.4375% {
        opacity: 1;
    }

    26.5625% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    98.4375% {
        opacity: 0;
        -webkit-transform: scale(1.21176);
        transform: scale(1.21176);
    }

    100% {
        opacity: 1;
    }
}

@keyframes kenburns-1 {
    0% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    1.5625% {
        opacity: 1;
    }

    23.4375% {
        opacity: 1;
    }

    26.5625% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    98.4375% {
        opacity: 0;
        -webkit-transform: scale(1.21176);
        transform: scale(1.21176);
    }

    100% {
        opacity: 1;
    }
}

@-webkit-keyframes kenburns-2 {
    23.4375% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    26.5625% {
        opacity: 1;
    }

    48.4375% {
        opacity: 1;
    }

    51.5625% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
}

@keyframes kenburns-2 {
    23.4375% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    26.5625% {
        opacity: 1;
    }

    48.4375% {
        opacity: 1;
    }

    51.5625% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
}

@-webkit-keyframes kenburns-3 {
    48.4375% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    51.5625% {
        opacity: 1;
    }

    73.4375% {
        opacity: 1;
    }

    76.5625% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
}

@keyframes kenburns-3 {
    48.4375% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    51.5625% {
        opacity: 1;
    }

    73.4375% {
        opacity: 1;
    }

    76.5625% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
}

@-webkit-keyframes kenburns-4 {
    73.4375% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    76.5625% {
        opacity: 1;
    }

    98.4375% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}

@keyframes kenburns-4 {
    73.4375% {
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }

    76.5625% {
        opacity: 1;
    }

    98.4375% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}


.box {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate3d(-50%, -50%, 0);
    transform: translate3d(-50%, -50%, 0);
    z-index: 99;
    text-align: center;
    font-family: Raleway, sans-serif;
    font-weight: 300;
    text-transform: uppercase;
    /* background-color: rgba(255, 255, 255, 0.75); */
    /* box-shadow: 0 1em 2em -1em rgba(0, 0, 0, 0.5);
    padding: 1em 2em; */
    line-height: 1.5;
}

.box div {
    cursor: pointer;
    display: block;
    text-transform: lowercase;
    font-size: .7em;
    margin: 70px auto;
}
.box div:hover {
    border-bottom: 1px solid #fff;
}
#welcome {
    background: url(../img/font1.png) no-repeat ;
    width: 747px;
    height: 79px;

}
#youji {
    margin-top: 140px;
    background: url(../img/font2.png) no-repeat -13px -23px;
    width: 294px;
    height: 40px;
}
#lvxing {
    background: url(../img/font2.png) no-repeat -13px -107px;
    width: 294px;
    height: 50px;
}
#zishu {
    background: url(../img/font2.png) no-repeat -13px -193px;
    width: 294px;
    height: 52px;
    margin-left: 214px;
}